" since the problems of the freshwater biodiversity facing the prd have complex linkages , wwf believes that ultimately an integrated approach is required to address the needs of freshwater for humans as well as various components in the freshwater ecosystems , including the fauna and flora in the headwater and the chinese white dolphins in the estuaries , " concluded mr bohm 毅理最后总结道：由于珠三角的淡水生物多样性中间存在著复杂的关系，本会认为我们需要一个综合的方式，为人类和淡水生态系统各部份，包括上游源头的动植物，以及在河口栖居的中华白海豚解决对淡水的需要。
The paper introduces and amends the composite indexes of soil erosion intensity and regional soil erosion intensity and conducts quantitative analysis on spatial relationship of types of land use and soil erosion intensity of whole china territory , the middle and lower areas of liaohe river , headwater area of danjiangkou reservoir of south - north water transfer project of hubei part and 4 regions of huidong county in guangdong based on sum up of general study methods of spatial relationship of land use and soil erosion 摘要在总结土地利用与土壤侵蚀空间关系一般研究方法的基础上，引入并修正了土壤侵蚀强度综合指数和区域土壤侵蚀强度综合指数，时整个中国境内、辽河中下游地区、南水北调丹江口水库水源区湖北部分和广东省惠东县4个区域土地利用类型与土壤侵蚀强度空间关系进行了定量比较分析。
The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed , destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river 摘要黄河源区生态环境恶化的地质原因之一是现代地质作用增强，形成以荒漠化为主的草地资源退化与下垫面改变，地区水气热平衡破坏；二是因冻土退化、萎缩，引起水环境变异，导致多层面与综合成因的生态环境恶化；三是人为及鼠类活动对源区生态环境恶化起著推波助澜的作用。
It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation , grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility , but the permeable performance is not outstanding , the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability , erodibility , erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands 摘要在野外调查、实测的基础上，采用因子分析、系统聚类分析的方法，根据土壤层水土保持功能的强弱，将黄浦江源区主要植被类型分为4类：落阔林、灌木林为第一类，表现出很强的水土保持功能；茶园、草地、松林为第二类，土壤水土保持功能较强；毛竹林、常绿阔叶林表现出较强的抗蚀性和抗冲性，但渗透性能并不突出，土壤贮水能力也一般，水土保持功能中等，为第三类；裸露地水土保持性能很差，单独作为第四类，其渗透性、抗蚀性、抗冲性、土壤水库容都显著小于其他各样地。
On the basis of suzihe watershed in dahuofang reservoir headwater , the problems of land and water resources utilization and management are analyzed and countermeasures are advanced in order to insure the headwater can offer the reservoir with good environment , support the reservoir ' s normal function and the whole watershed ecological environment system ' s benign circulation 以大伙房水库水源涵养区苏子河流域为例，分析目前苏子河流域水土资源开发利用和管理中存在的问题，并提出相应的对策，以确保涵养区为水库提供良好的水源涵养环境，维护水库功能的正常发挥，推动整个流域生态环境系统的良性循环。
The research of the subject had study thoroughly the using situation of the water and soil of ejina oasis in the downstream of the inland river in the arid area . and it had get the experience and test of the use of water and soil through study the past material . and it had make it known that the decrease of the runoff volume from headwater , the excessive cultivation area and serious waste of water are reasons for desert soil and ecotope deterioration 本文在对位于干旱区内陆河下游的额济纳绿洲水土资源开发利用现状，进行全面研究的基础上，总结了近五十年额济纳绿洲水土资源开发利用的经验和教训，找出了存在的问题：上游来水减少，过度开垦，水资源浪费严重，土地荒漠化加剧，生态环境恶化。
